Mining apparatus



March` 13,

1,662,787 M. P. HOLMES MINING APPARATUS Original Filed June l. 1920Patented Mar. 13, 1928.

entran stares maaier earner carica.;

MORI-RIS P. HOLMES, OF CLAREMONT, VNEW' HAMlSHIRE, ASSIGNOR T0 SULLIVANMACHINERY COMPANY, A CORPORATION OF' MASSACHUSETTS.

MINING APPARATUS.

Application filed June 1, 1920, Serial My invention relates to miningapparatus. It has for its object to provide an improved miningapparatus. A further object of my invention is' to provide improvedmeans for driving a mining machine truck.

A further object of my invention is to provide ani-improved, rugged, andsimplified truck driving means, adapted to be driven by a mining machinecarried on the truck, and constructed andv arranged in animproved mannerenabling the power desired for transport' purposes to be obtained andreadily controlled.

In the accompanying drawings I have shown for purposes of illustrationone embodiment which my vinvention may assume in practice.

Fig. 1 is a side elevation of a mining apparatus equipped with myimprovement, the machine lbeing shown in transport position on itstruck.

Fig. 2 is a larger plan view of the cooperating truck drivingmechanismen the machine and truck, certain parts being broken away tofacilitate illustration.

Fig. 3 is a vertical sectional view on line 3-3 of Fig. 2.

In this illustrative construction I have shown a mining apparatusincluding a truck 1 of low or drop axle construction mounted on wheels 2and adapted to be propelled over amine track 3, the truck hereincarrying a fiexibly fed mining machine 4 adapted to slide on itsr bottomon a mine bottom during cutting and having improved operativeconnections hereinafter described whereby when said machine is loadedfor transport on the truck the truck wheels 2 may be driven from themining-'machine motor. Herein the mining machine is shown as of theconstruction described and claimed in my Patent No. 1,544,398, grantedJune 30, 1925. As in a usual construction, a

pinion 5 on therear'end of the mining machine motor sha-ft 6 also drivesa lieXiblefeed operating member 7 adapted to cooperate directly with aflexible feeding member and to draw the latter in and move'th'e machinebodily when desired or swing the bar, the member 7 being -driven througha usual frictionl controlled fast and slow feedingmechanism, hereinfor'purposes of il` lustration simplified and shown as only comprising afast feed mechanism including a No. 385,651. Renewed May 21, 1927.

pinion driven gear 8, bevel pinion 9,*bevel gear 10, a friction clutch11, gears 12, 13, 14 and 15.

In my improved construction, however, the truck driving mechanism is notdriven through the friction controlled feeding mechanism, but is insteadseparately driven directly from the `motor and controlled by anotherfriction, herein a larger clutch carried on the truck. Thus, it will beobserved that the truck driving mechanism carried upon the machine isenabled to be powerfully, positively, and simply driven at a properspeed and` to cooperate with this other friction clutch, in such amanner as thereby to avoid all necessity for providing in the machinefeed an objectionably large friction clutch of the character required totransmit sufficient power to the truck, or disturbing the feedingmechanism in any way whatsoever.

Herein, it will be noted that the pinion 5 drives the truck drivingmechanism through suitable reducing mechanism, herein operativelyvconnected to the motor at a point between the initial driving gear ofthe feeding mechanism and the motor in such manner as to be independentof the feeding mechanism. More particularly, the pinion 5 drives alarger 'gear 16 fixed to a longitudinal shaft 17 j'ournaled at 18 in themotor head 19, and this shaft 17 in turn carries on its rear end a.smaller bevel pinion p 20 meshing with a cooperating shaft mounted bevelpinion 21 of the same size rotatable on a transverse axis in the side ofthe machine frame and carrying on its outer end a suitable truck drivingmember, herein a sprocket 22.

This truck driving member is in turn connected by suitable means, hereinin the form vof a chain 23, with mechanism on the truck whereof element29 is toggle operated and connectible with a spider 30 keyed to theshaft 25 and engageable with a collar 31 vtransmission mechanismemployed.

ment 29 and disposed coaxially with the latter on the shaft. f Thismember?) is herein also provided with a rearwardly extending endpivotally connected at 34 to a transversely disposed lever 35, thelatter in turn being pivoted at 36 to form a toggle With an 'operatinghandle 37 pivoted at 38 to the frame.

As shown herein, the shaft 25 is also friction controlled by a suitablebrake, 'the shaft herein being provided intermediate its ends with aconcentrically `arranged shaft brake 39 controlled by a suitablecontrolling lever 40. Further, the shaft is connected at one or both ofits ends with the truck Wheels, the shaft carrying on its opposite endssprockets 4l, one 'or both of which, as desired, may be connectedthrough chains l2 with the Wheels 2 on the reai stub axle 43, andthrough suitable chain and sprocket connections 4A, with the Wheels 2 onthe front stub a-Xle. yThus it'Will be noted that-the truck is'driventhrough the shaft 25 and that through the friction clutch and brake onthe shaft, the truck movement may be controlled fas desired.

observed that when the machine is loaded on.

its truck and the chain 28 is connected to the sprocket 22, the rotationof the motor shaft 6 is transmitted through the pinion 5, gear 16,meshing pinions and 2l, to the sprocket 22, which is constantly andpositively rotated at a reduced speed due to the Thus, when the chain 23is connected to the sprocket l211i, the clutch element 28 will beconstantly rotated. 1When it is .desired to drive the truck, it is thenonly necessary to `the clutch .elements 29 into gripping relationWiththe clutch element 28, whereupon `the shaft will be rotated to drivethe sprocket 4 1 and 'propelthe truck. Due to the provision of thetoggle connections for the koperating handle 37, it will be observedthat the tufo clutch elementsmaybe practically positively connectedifdesired at thesame time that the speed may at any time be variedVthrough a partial manual release of the members 29. vIt `Will also beevident that Athrough the operation of the 'brake 39 .the

truck may be'further 4controlleri whenfdesiied, this biakebeing operableindependently of the clutch mechanism to vary the speed of rotation ofthe shaft 25 When and as desired.

In myimproved construction, it will also be observed that, through theprovision of my improved truck driving mechanism on the machine andtruck, all necessity for disturbing or re-oi'ganizing the feed mechanismtheir single or joint Voperations when def sired. Attention is valsodirected to the fact that the construction is both exceedingly simpleand rugged, and also Well-adapted to be Aapplied to machines of standardconstruction at relatively small expense.

`-While I have in thisnapplication specilica-lly described oneembodiment uf'hiclimy invention may assume in practice, it Will beunderstood tliatfthis form of same is used for-purpose of illustrationand that thc machine may be modified and embodied in various other formswithout departing lfrom its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is l. Incombination, -a mining machine slidable on its bottom on a mine bottomduring cutting and having feeding mechanism thereon including a.drivin-g' motor, a truck carrying said mining machine, truck drivingmechanism operatively connected to said motor Wholly independently ofsaid feeding mechanism and including a friction clutch on said truckcontrolling truck movement, and an independently oper: ble brake carriedon said truck and controlling truck movement.

2. In combination, a mining machine slidablel on its bottom on a mine'bottom during cutting and includingamotor and feeding .mechanism driventhereby 'through a friction clutch` a t-ruck carryi-ngsaid machine.

truck driving mechanism positively driven bythe saine'end of said motordriving said 'r 'feeding mechanism but Wholly independently of thelatter and including a friction clutch controlling truck movement, andan .independent-ly operable brake on said truck controlling truckmovement.

In combination, a mining machine slidable enfitsibottom en lamine bottomduring cutting land having feeding mechanism thereon including `a`driving motor, a wheeled truck carrying ksaid "ininin-grinachine, truckdriving mechanism operatively connected to said motor whollyindependently of said feeding mechanism and includ ing a wheel driving`shafton said truck and a friction clutch controlling the rotation ofsaid shaft, and a truck brake acting on said shaft.

Li. In a truclr driving mechanism, a Wheeled truck frame, a truckdriving shaft ereon, a wheel driving sprocket on said siaft, a clutchmember disposed coaxially with said shaft, and rotatable thereon, ashaft driving member rotatable with said clutch member, a cooperatingclutch member disposed coaxially with said shaft and rotatabletherewith, and operating means including a toggle for operativelyconnecting said clutch members.

5. In combination, a mining machine having a longitudinally extendingmotor shaft, and feeding mechanism operatvely connected thereto anddriven thereby including a feed operating member adapted to cooperatedirectly with flexible feeding means and a feed train for driving saidfeed operating member, said motor shaft carrying a pinion driving saidfeed train, a wheeled truck adapted to receive said mining machine fortransport, and truck driving mechanism driven by said motor andconnected tothe truck wheels including a laterally extending truckdriving member and operative connections between the same and said motorshaft including a gear meshing with said pinion carried on said motorshaft, said truck drive, including said gear, being wholly independentof said feeding mechanism..

6. In combination, a mining machine having a longitudinally extendingmotor shaft, a pinion on said shaft, and feeding mechanism operativelyconnected to and driven by said motor shaft including a feed traindriven by said pinion and a feed operating member adapted to cooperatedirectly with flexible feeding means driven by said feed train, awheeled't-ruck adapted to receive said mining machine for transport, andtruck driving mechanism driven by said motor and connected to the truckwheels including a laterally extending truck driving member andoperative connections between the same and said motor shaft including aspur gear driven by said motor 'shaft pinion and independent of thefeedtrain and bevel gearing connected to said spur gear and to Saidlaterally extending member.

7. In combination, a mining machine slidable on its bottom on the minebottom during cutting and having a laterally extending truck drivingmember. a wheeled truck for supporting said mining machine duringtransport, and truck driving mechanism between said laterally extendingmember and the truck wheels including a tran-sverse truck drivingshafton said truck, a flexible connection between a point intermediatethe ends of said shaft and said laterally extending member, flexibleconnections between the opposite ends of said shaft and the truckwheels, a friction clutch on said shaft for connecting said connectionsand controlling truck movement, and an independently adjustable manuallycontrolled brake acting on said shaft and disposed on the opposite sideof said friction clutch from the connection to said laterally extendingmember.

8. In combination, a mining machine of the type having a frame slidableon its bottom on the mine bottom and a motor shaft extendinglongitudinally thereof, and feeding mechanism operatively connected tosaid motor shaft and driven thereby, a wheeled truck adapted to receivesaid mining machine for transport, and truck driving mechanism driven bysaid motor shaft and connected to the truck wheels including a truckdriving member journaled on said frame and projecting laterallytherefrom, operative connections between said motor and said memberdisposed within the frame and including a gear driven by said motorshaft,

branched driving connections between said gear and said truck drivingmember and said feeding mechanism, said connections between said gearand said truck driving member including intermeshing gearing whollyindependent of the feeding mechanism beyond said gear, and operativeconnections between said truck driving member and the truck wheels.

9. In combination, a mining machine of the type having a frame slidableon its bottom on the mine bottom and a motor shaft extendinglongitudinally thereof, and feeding mechanism operatively connected tosaid motor shaft and driven thereby, a wheeled truck adapted to receivesaid mining machine for transport, and truck driving mechanism driven bysaid motor shaft and connected to the truck wheels including a truckdriving member journaled on said frame and projecting laterallytherefrom, operative connections between said motor and said memberdisposed within the frame and including a geardriven by Said motorshaft, branched driving connections between said gear and said truckdriving member and said feeding mechanism, said connections between saidgear and said truck driving member being wholly independent of thefeeding mechanism beyond said gear, and said connections between saidmotor driven gear Aand said truck driving member including intermeshingbevel gearing disposed within the frame, and operative connectionsbetween said truck driving member and the truck wheels.

10. In combination, a mining machine of the type having a frame slidableon its bottom on the mine bottom and a motor shaft i un extendinglongitudinally' thereof; and feeding mechanismV operativelyconnected tosaid motor shaft and: driven thereby', a Wheeled truck adapted to*lreceive saidmining machine for transport, and truck drivingvmechanismdriven by said motor shaft and connected to the truck wheels including atruck driving member jonrnaledony said frame and projecting laterallytherefrom,` operative connections between said motor and said member`disposed Withinv the frame and including a gear. driven by; said motorshaft, branched driving connections between said gear and said truckdriving member and said 'eedingmechanism, said; connections between saidgear and saidy truck driving element beingy Wholly independent of thefeeding mechanism beyond said gear, and said connections betweensaidmotor driven gear and said truck driving member including ahorizontal transverse shaft jonrnaledl on the `side of the machine frameand tothe outer end of which said truck driving member is con.,-Y

nected a bevel gear disposedl Within said frame and secured to the innerend of said shaft, and a bevel gear meshing with sa` bevel gear, andoperative connections between sa-id truck driving member and the truckWheels.

In testimony whereof I affix my signature.

MORRISk P. HOLMES.

